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Ferris didn't attract significant attention from the Star League and Draconis Combine forces during Operation UNION HOLD, the five-year campaign from 2581 to 2585 intended to forcibly incorporate the Outworlds Alliance into the Star League. Other nearby worlds such as Banori and Loparri were subject to damaging raids by Star League forces, acting under orders from the Outworlds Alliance Task Force commander, GeneralAmos Forlough, to defeat the will and means of the Alliance to resist by targeting towns, cities and infrastructure on worlds across the Alliance. Ferris may well have been a target for such a raid as well given the systematic manner in which SLDF forces were attacking Alliance worlds, but the pivotal battle now known as the Day of Vengeance fought on the nearby mining world of Tellman IV stopped the Star League raids indefinitely.[4] After the Treaty of Cerberus came into effect on the 1st of August 2585, Ferris remained a member of the Outworlds Alliance.[5][6][7]

Ferris was also the location of an AGDA training facility for militia MechWarriors,[8][1] armor personnel, and conventional infantry. The AGDA facility on Ferris was suffering from a decline in training levels, as the facility was increasingly refusing to interact with the other three major AGDA facilities located in the Alliance because of a desire to avoid being "tainted" by the Snow Ravens. Despite the decline in training standards the facility was trying to reactivate it's former aerospace fighter programme.[1]